16511273452 has 6 divisors (see below), whose sum is σ = 28894728548. Its totient is φ = 8255636724.

The previous prime is 16511273447. The next prime is 16511273459. The reversal of 16511273452 is 25437211561.

It is not an unprimeable number, because it can be changed into a prime (16511273459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063909178 + ... + 2063909185.

Almost surely, 2^16511273452 is an apocalyptic number.

It is an amenable number.

16511273452 is a deficient number, since it is larger than the sum of its proper divisors (12383455096).

16511273452 is a wasteful number, since it uses less digits than its factorization.

16511273452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127818367 (or 4127818365 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The spelling of 16511273452 in words is "sixteen billion, five hundred eleven million, two hundred seventy-three thousand, four hundred fifty-two".